In human neuroscience we cannot ethically take living human brain samples. For example, many autism researchers would like to examine how drugs can affect neuro

In human neuroscience we cannot ethically take living human brain samples. For example, many autism researchers would like to examine how drugs can affect neurotransmitter pathways in neurons from autistic humans, but we cannot get those neurons. Recent research is getting funded in which skin cells, which can be ethically collected, and are coaxed into neurons. While there are bound to be differences between these neurons and 'real' neurons from the brain, it is a big step forward.